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Multi-band remote oriented loud acoustic system

A multi-band, long-range technology, applied in the directions of sound-producing equipment, speech analysis, instruments, etc., can solve the problem that the remote directional strong sound system cannot take into account multiple objects at the same time.

Inactive Publication Date: 2014-03-26
MIANYANG XINGYU ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a remote directional strong sound system that can generate strong sound waves in multiple frequency bands, so as to solve the problem that the remote directional strong sound system using a single transducer cannot take into account multiple objects at the same time

Method used

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  • Multi-band remote oriented loud acoustic system

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Embodiment Construction

[0023] figure 1 The overall structure of the multi-band long-range directional strong sound system is shown. The multi-band remote directional strong sound system consists of signal input equipment (1), low-pass filter 1 (2), A / D converter 1 (3), low-pass filter 2 (4), omnidirectional microphone (5), It is composed of A / D converter 2 (6), digital signal processor (7), and acoustic emission channel. Wherein the acoustic emission channel is made up of n roads, and each road includes power amplifier (8), matching circuit (9) and transducer group (10) three parts; Signal input device (1) can be in equipment such as MP3, MP4, microphone One or more, but it must be guaranteed that there is at least one signal input device that can store information, such as MP3 or MP4. The multi-band remote directional strong sound system first collects the sound information of the surrounding environment through the omnidirectional microphone (5), and then filters out the out-of-band components o...

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Abstract

A multi-band remote oriented loud acoustic system is composed of a signal input device, a low pass filter 1, an A / D converter 1, an omnidirectional microphone, a low pass filter 2, an A / D converter 2, a digital signal processor and acoustic emission channels. The acoustic emission channel is composed of a power amplifier, a match circuit and a transducer unit. A plurality of acoustic emission channels simultaneously exist in the system and are respectively corresponding to different frequency bands. According to the system, automatic acoustic sample selection can be realized according to objects in the outside world, and oriented loud acoustic signals can be emitted simultaneously through the acoustic emission channels of different frequency bands. Thus, the system can have effects on a plurality of objects simultaneously.

Description

technical field [0001] The invention relates to a remote directional loudspeaker system, in particular to a multi-band remote directional loudspeaker system capable of dynamically adjusting frequency bands. Background technique [0002] The long-distance directional strong sound system uses the sound wave directional technology to direct the high-power sound wave to a long distance, so as to achieve the purpose of long-distance clear notification, warning, or dispersing and rejecting the affected object. According to different objects, the system needs to use sound waves of different frequency bands to achieve the best effect. For example, sound waves of 5-15KHz can drive away animals such as elephants, owls, canaries, and small parrots, and sound waves of 15-30KHz can drive away Horses, sheep, chinchillas, mice and other animals, 25-40KHz sound waves can drive away dogs, cows, horses, sheep, mice, raccoons, American porcupines and ferrets, etc., 20-65KHz sound waves can dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/26G10L17/26A01M29/16
Inventor 陈敏黄彦鑫陈尔禹
Owner MIANYANG XINGYU ELECTRONICS TECH
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